Izuku is the pregnant omega mate of Yakuza boss Chisaki Kai.
Pampered omega that gets every whim he demands.
What the alpha boss doesn't know is that the omega is carrying a pup from his bodyguard.

Kai is always traveling outside of Japan, so he thought that hiring a bodyguard for his omega was a good idea.
The omega was annoyed with it at first, claiming that he didn't need a knothead to watch his every move.
He was lucky to find someone his mate knew beforehand.

Katsuki Bakugou came with good recommendations from the Todoroki branch. Strong willed alpha that took care of kings and queens before. Perfect to take care of his omega prince.
Izuku had calmed down when the alpha was introduced to him, finally accepting a guardian.

It had been a surprise for both of them. Childhood friends separated for life, reunited by destiny.
Izuku the pampered omega, future matriarch of an empire of crime and blood, Katsuki a loyal bodyguard with thirst for more, to be on top.

Not much is revealed to the boss, the omega knows his alpha to be jealous of those with too much history, acquaintances is ok, childhood friends would never pass, puppy love... abhorrent.

"How did you end up here Deku?" the blond asks the omega while on his first day of the job. He's taking him shopping, spending millions to forget the loneliness his husband leaves him in.
"I was in the right place, at the right time" a knowing look through the rear-view mirror.

The alpha carries his bags. Deku is extremely different for what he reminds, at least at first glance.
In every place they visit he's treated as royalty, people running to make him feel welcome, careful to not offend him.
Walks like he's the image of class, seductive and royal.

Katsuki knows his omega friend is problem, his alpha senses it. He's proved right where they visit a lingerie store and the omega asks for an opinion.
Getting an erection at work could get him fired, even killed,

but he's there, sitting like an idiot, while the omega parades around him in nothing but a lace black corset, panties and stockings. His skin is filled with freckles and Katsuki with improper thoughts.
So much for a first day.

"Could you help me with this?" Deku walks over to him, showing him his back, and an sinful derriere.
"Wha.." he clears his throat as he stands up "...do you need?"
With a mischievous look over his shoulder, the omega giggles.
"Undress me Kacchan, please"

It happens quickly, a soft caress here, a sigh there, and suddenly they are fucking in the dressing room. Izuku's head hitting the wall with every thrust of the horny alpha as the music volume in the store gets higher.

Nails digging in a strong back as the movements turn frantic. The alpha is panting and breathing against Izuku's neck as a needy animal.
The omega pushes him back a little
"Don't ...don't knot me" making his companion whine.

At the end of their deed, Katsuki found himself cleaning his seed from the floor.
Izuku getting dressed in front of the mirror.
"Yes, I think I'm buying this one...you seemed to enjoy it" added picking up the discarded lingerie "good job today Kacchan!"

To be honest, he doesn't think he did a good job, he did a terrible job, an awful job and is pretty sure he is getting fired or murdered later. The omega on the other hand looks pretty calm, pleased.
When they get out of the changing room, the music goes back to a normal volume

Izuku walks to the counter, bringing a few more sets of lingerie with him, the alpha follow him with his head low in defeat.
"Would that be all Izuku-kun?" a cheerful girl asked as she scanned the items.
"Hmm I think I'm pleased with my shopping today Ochacko-chan"

Both seem to be in an inside joke that the alpha doesn't know because they giggle at this.
Once they leave the store, Izuku is pulling him into a jewelry store, pointing at watches.
"Pick anything Kacchan, you were such a good alpha today"
"Are you fucking insane?"

The omega just rolls his eyes "Nothing is going to happen, Ochacko-chan'd loyalty is on my side,I gave her that store, I gave her a better life." He points to a particular watch to the store clerk and pays in cash for it.
"Are we going to talk about what happened there?"

"I'm just really glad to have you in my life. I always liked Kacchan", it's funny how this little thing is what makes the omega blush, not being railed inside a dressing room.
Katsuki thinks about how he spend all those years thinking about the omega whereabouts, what he was

doing, If he had mate, how often he dreamed of finding him.. his alpha instincts didn't think twice about fucking him.
"I'm glad too" he is rewarded a giant smile back, and the little back with the watch.
"Can I have another thing too?"
"Of course Kacchan"
"I want to eat you out"

That night Katsuki crosses another line when without fear and clouded by lust, let's the omega build a nest on his bed, sheets drenched in bliss by the end of it.
From that point on the bodyguard got special privileges, as long as the boss wasn't home.

With time, the alpha came to realize that Izuku wasn't just the trophy husband of the mafia boss. Between seductive eyes and divine scent were a firm will and a brain made for business.
He was powerful, and the omega knew it. For Katsuki that made him hotter.

Chisaki seemed to be living under a blissful ignorance. Came home from his travels bringing multiple gifts for the omega.
"Where's my queen?" he would say voice filled with adoration as the omega sauntered up to him, Katsuki always walking behind.
"Welcome home, your highness"

For Katsuki those days were the worst, knowing the hunger in the eyes of the alpha boss, thinking about how the omega would be mounted by his husband that night.
The awful realization that the affair made him fall into love.

He loved Izuku, and he liked to think that the omega loved him back.
When they were together Izuku was calmer, more into his nerdy ways, brighter ... when the mafia boss was around his Deku seemed like a meek sex doll.
It was driving him crazy, dreams filled with murder.

"I think we should get a heir" Kai whispered against the skin of his naked omega. He just came back from France and kept Izuku in bed for a whole day.
"I would like that" sultry voice replying as the omega got on all fours "come, give me a child"
"Gladly, my queen"

------
"Maybe I can't have kids" moaned the omega, against the matress, fingers digging into it.
"Fuck" alpha behind him grabbing his hips with more force "maybe it's him " another groan.
Biting his lip, Izuku turned his face a to catch the eye of his lover
"Maybe you could..."

"Are you sure?" Katsuki stoped to kiss to the omega softly.
The boss and Izuku had been trying to conceive for a while already, and nothing had happened. Even thought the omega didn't express it, Katsuki knew he was worried.

"I'm scared he's going to replace me, bring another omega...I need to know if it's me, need to plan"
The alpha pulled out of him to remove his condom, turning his love on his back.
"I need you to know that I love you Deku"
"I know Kacchan,I know" he mewled welcoming him inside.

Izuku had lied about his heat to his mate, told him it was late for him to go, for Kai to go to another of his long trips.
"I'll be back to breed you" he had said, clueless about how his husband was fucked in every single position inside their room.

The clan needed a heir, and the omega's job was to give it. Izuku enjoyed his job, enjoyed in on the bed, against the wall, in the balcony and on the floor.
Kai Chisaki wished for a heir... sometimes wishes can be tricky.
His mate inside his heat, knotted daily by a good alpha.

At the end of the week, with Katsuki grunting against his neck, the last of his seed hitting his womb. Izuku knew it. Knew he was fertile as soil, heart warm.
The alpha seemed to sense it too, his hands gentle against his stomach, proud croons at a job well done.

Convincing Kai of the news wasn't hard, after all the omega had already lied about his heat being late. Having Dr Iida on his side was great too, after all he just got a brand new clinic courtesy of Izuku.
Katsuki, well the alpha was other story...he was mad at Izuku, furious.

He had to watch the mafia leader boasting about his good swimmers to his clan, scenting him everywhere and joking about how he didn't needed another omega now.
If only the bastard knew that he was shooting blanks.

"It has to be a secret, at least for now" Izuku reassured his Kacchan constantly, at least they could be close being the Alpha's job to guard him.
"I don't want him touching my kid" Katsuki just growled in return.
"He won't dear, he won't".

Izuku had been planning his revenge for years, tears hidden between jewelry and trips around the world. No amount of money could give him back his mother, no amount of gold his freedom.
He had planned and planned again and again, failures.

Life as a teen was a good one, not perfect but happy, he had friends, Kacchan had asked him out and his mom was marrying with a good man.
They were about to have new opportunities she had said.
Izuku knew Yagi Toshinori was a powerful man but his kindness was bigger,

they were supposed to be happy, go on their honeymoon, Izuku on his first date...but instead his mom took her dying breaths on the aisle. Paid man's of the Chisaki clan using a bullet to put an end to a beautiful wedding.

Toshinori took him under his tutelage. How could he not when he blamed himself daily about the lost of the woman they both cherished?
That wasn't supposed to happen, but his honesty, his lawful conduct made him a target of the clan.

They took their revenge, and Izuku was going to take his.
He had to leave his friends behind, his Kacchan, but he needed to, they took his mom, his life. So he trained himself, made every single effort to appear irresistible, seductive to the alpha heir.

Toshinori gave him the means, Izuku took every opportunity, climbed ladder after ladder, gained the trust of Kai, made him list after him, give him a ring.
With money he bought the clan, with his brilliance he won their loyalty,

and when Kacchan came back into his life it was easy to add him to it, this was the alpha he wanted, the one he loved.
Chisaki Kai destroyed his life some years ago, it was only fair for him to pay the prize.

Kai had started to notice something strange in the bodyguard of his omega. He came with more than enough recommendations, that's true, but he was extremely passionate about his job, perhaps way too much for his liking.

There were moments were he could swear he had heard the other alpha growling at him when he rightfully approached to kiss his mate.
The possessive smell that lingered in certain parts of their house was not in his imagination. It seemed like the guy needed to be taught a lesson.

" I think I'm going to fire Bakugou" Kai told Izuku while they were getting in bed one night.
"Why is that, he's doing his job. I need a bodyguard now more than ever" he smiled, caressing his swollen belly.
"I don't like how he looks at you" at this the omega felt real cold.